Determination of periodicities of low-frequency deformation processes in electromagnetic radiation variations in the Ural Superdeep well

The electromagnetic radiation (also called EMR) from rocks is studied by a few methods. The EMR registration method is widely used for studying physical mechanical characteristics of rocks and rock breakage processes, for modeling of earthquake preparation and earthquake precursors, as well as for estimation of stress patterns in a rock massif. In the in situ rock massif, the estimation of the stress deformation pat tern of the rock massif and control over the process of rock breakage are conducted using the EMR based data. These studies, conducted in underground mines, are used for the solution of tasks of engineering geology.